<?php

/**
 * Field handler to allow linking to a user account or homepage
 */
class views_handler_field_comment_username extends views_handler_field {

    /**
     * Override init function to add uid and homepage fields.
     */
    function init(&$view, &$data) {
        parent::init($view, $data);
        $this->additional_fields['uid'] = 'uid';
        $this->additional_fields['homepage'] = 'homepage';
    }

    function option_definition() {
        $options = parent::option_definition();
        $options['link_to_user'] = array('default' => TRUE);
        return $options;
    }

    function options_form(&$form, &$form_state) {
        parent::options_form($form, $form_state);
        $form['link_to_user'] = array(
            '#title' => t("Link this field to its user or an author's homepage"),
            '#type' => 'checkbox',
            '#default_value' => $this->options['link_to_user'],
        );
    }

    function render_link($data, $values) {
        if (!empty($this->options['link_to_user'])) {
            $account->uid = $values->{$this->aliases['uid']};
            $account->name = $values->{$this->field_alias};
            $account->homepage = $values->{$this->aliases['homepage']};

            return theme('username', $account);
        } else {
            return $data;
        }
    }

    function render($values) {
        return $this->render_link(check_plain($values->{$this->field_alias}), $values);
    }

}
